/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraHierarchyViewModelBase.h
[FNiagaraHierarchyIdentity](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\FNiagaraHierarchyIdentity) GetPersistentIdentity() const